Pa October 17, 2013, bungwe la International Agency for Research on Cancer, lomwe ndi nthambi ya World Health Organization, linapereka lipoti kwa nthawi yoyamba kuti kuwonongeka kwa mpweya kumachititsa kuti anthu awonongeke, ndipo chinthu chachikulu cha kuwonongeka kwa mpweya ndi zinthu zina.
M’chilengedwe, tinthu tating’onoting’ono timene timakhala mumlengalenga timaphatikizapo mchenga ndi fumbi lobwera chifukwa cha mphepo, phulusa lachiphalaphala lotulutsidwa chifukwa cha kuphulika kwa mapiri, utsi ndi fumbi lobwera chifukwa cha moto wa m’nkhalango, mchere wa m’nyanja umene umatuluka kuchokera m’madzi a m’nyanja amene amachititsidwa ndi kuwala kwa dzuwa, ndi mungu wa zomera.
Ndi chitukuko cha anthu ndi kukula kwa mafakitale, zochita za anthu zimatulutsanso zinthu zambiri mumlengalenga, monga mwaye wochokera kuzinthu zosiyanasiyana zamafakitale monga magetsi, zitsulo, petroleum, ndi chemistry, utsi wophika, utsi wochokera kumagetsi. magalimoto, kusuta etc.
Tinthu ting'onoting'ono tomwe timakhala mumlengalenga tifunika kukhudzidwa kwambiri ndi zinthu zomwe zimatha kutulutsa mpweya, zomwe zikutanthauza kuti tinthu tating'onoting'ono tating'onoting'ono tofanana ndi 10 μm, yomwe ndi PM10 yomwe timamva nthawi zambiri, ndipo PM2.5 ndi yosakwana 2.5 μm .
Mpweya ukalowa m'njira yopuma ya munthu, tsitsi la m'mphuno ndi mphuno zimatha kutsekereza tinthu tambirimbiri, koma zomwe zili pansi pa PM10 sizingathe.PM10 imatha kudziunjikira m'mwamba kupuma thirakiti, pomwe PM2.5 imatha kulowa mwachindunji mu bronchioles ndi alveoli.
Chifukwa cha kukula kwake kakang'ono komanso malo akuluakulu enieni, zinthu zina zimakhala zosavuta kutsatsa zinthu zina, choncho zomwe zimayambitsa matenda ake zimakhala zovuta kwambiri, koma chofunika kwambiri ndi chakuti zingayambitse matenda a mtima, matenda a kupuma ndi khansa ya m'mapapo.
PM2.5, yomwe nthawi zambiri timasamala, imakhala ndi gawo laling'ono la tinthu tating'ono tomwe timapuma, koma bwanji mumayang'anitsitsa PM2.5?
Inde, imodzi ndi chifukwa cha kulengeza kwa TV, ndipo ina ndi yakuti PM2.5 ndi yabwino komanso yosavuta kuyamwa zowononga zachilengedwe ndi zitsulo zolemera monga polycyclic onunkhira hydrocarbons, zomwe zimawonjezera kwambiri mwayi wa carcinogenic, teratogenic, ndi mutagenic.
Nthawi yotumiza: Mar-16-2022